Introduction: Nowadays there is the transformation of the national health care system in Ukraine, the ultimate goal of which is to create a modern, competitive model of medical care of citizens on the basis of forming packages of free medical services. However, the model adopted by Ukraine is in contradiction with national legislation in part of free medical aid guaranteed by the Art. 49 of the Constitution of Ukraine, and fragmentary considers positive international practices. The aim of the paper is to determine the mistakes of the reform of the Ukrainian health care system and to reveal the positive international practices of the organization of health care systems that can be implemented in Ukraine. Materials and methods: National and international legislation, official web resources of the executive authorities of Ukraine, statistics of the World Health Organization, materials of journalistic and scientific periodicals are the materials for the research of the health care system in Ukraine in comparison with international practices. Research methods are cross-sectoral, complex statistical, comparative, generalization, analysis and synthesis. In order to obtain the results, the authors have conducted a critical analysis of the current norms of the national Ukrainian legislation in the health care sector. Review: The authors of the article have studied the main disadvantages of the national health care system in accordance with the concept of reforming the medical sector. Positive international practices that can be implemented into Ukrainian system for the real improvement of medical human rights in Ukraine have been revealed. Conclusions: It has been proved that the ongoing reform of the health care system in Ukraine needs to be reviewed and optimized. It has been offered to consolidate a perspective model of the Ukrainian health care system, its principles and guarantees of immunity at the legislative level.